Sweet Smelling Light Green Grass

I have a section of my yard (pretty much the only place it looks great) that has a sweet smelling lighter green grass. It looks great and grows well no matter the temp or amount of water. It smells very sweet when it is cut. It seems to be spreading slowly through my lower yard. I would like to know what it is so I can plant it around my yard. I can get a picture of it later today when I get home from work.